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| Simultaneous Determination of 11 Heavy Metals Elements in Grain and Vegetables by Inductively Coupled Plasma Mass Spectrometry with Microwave Digestion |
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| DOI： |
| KeyWord:microwave digestion inductively coupled plasma mass spectrometry heavy metals elements grain and vegetable |
| Author | Institution |
| WANG Xue-mei,DU Tong-tong,WANG Juan,DU Xin-zhen,LU Xiao-quan |
1.西北师范大学化学化工学院;2.甘肃省生物电化学与环境分析重点实验室 |
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| Abstract: |
| In this paper,a method was established for the analysis of 11 heavy metal elements(Cu，Mn，Cr，Pb，Cd，Ni，Sb，Hg，Co，Ag，As) in grain and vegetables using inductively coupled plasma mass spectrometry(ICP-MS) with microwave digestion.The instrumental parameters and microwave digestion conditions were optimized.Samples were digested completely using HNO3-HF-H2O2 and HNO3-H2O2.And the results showed that the linear correlation cofficients of eleven elements(r) were not less than 0.999 5,the limits of detection were in the range of 0.001-10.00 μg/L and the relative standard deviations(RSD，n=5) were not more than 5.0%.This method has the advantages of rapidness,simplicity,high sensitivity,good stability and accuracy. |
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